.chat {
    position: absolute;
    bottom: 10px;
    right: 50px;
    width: 280px;
    height: 320px;
    overflow: hidden;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    border-radius: 5px;
    // background-color: pink;
    .chat_header {
        width: 100%;
        height: 30px;
        text-align: center;
        font-size: 16px;
        line-height: 30px;
        background: rgb(31, 140, 235) no-repeat 10px;
        .chat_header_down {
            float: right;
            margin-right: 20px;
            font-size: 18px;
            cursor: pointer;
        }
    }
    .chat_main {
        width: 100%;
        padding: 10px;
        height: 240px;
        margin-top: 2px;
        background-color: skyblue;
        overflow-y:auto;
        .sentence {
            position: relative;
            box-shadow: 0 4px 8px 0 rgba(255, 255, 255, 0.2), 0 6px 20px 0 rgba(255, 255, 255, 0.2);
            padding: 5px 5px;
            border-radius: 5px;
            background-color: #fff;
            margin-top: 10px;;
        }
        .sentence::before {
            content: '';
            width: 10px;
            height: 10px;
            position: absolute;
            top: 3px;
            right: -3px;
            transform: rotate(45deg);
            background-color: #fff;
        }
        .sentence1 {
            position: relative;
            box-shadow: 0 4px 8px 0 rgba(255, 255, 255, 0.2), 0 6px 20px 0 rgba(255, 255, 255, 0.2);
            padding: 5px 5px;
            border-radius: 5px;
            background-color: #fff;
            margin-top: 10px;;
        }
        .sentence1::before {
            content: '';
            width: 10px;
            height: 10px;
            position: absolute;
            top: 3px;
            left: -3px;
            transform: rotate(45deg);
            background-color: #fff;
        }
    }
    .chat_search {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        height: 40px;
        // background-color: red;
        margin-top: 5px;
        .chat_search_icon {
            width: 40px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            color: blue;
        }
        .chat_search_main {
            flex:1;
        }
        .chat_search_send {
            width: 50px;
        }
    }
}



